camera malfunction

So I'm on vacation in vegas, been taking a lot of pics and my camera craps out on me... When I load the camera app it makes the shutter/clicking sounds but the screen stays black. When I load pro 5x it does the same but gives me an error msg saying hardware malfunction try reopening or rebooting. I've reverted back to stock to no avail, should I take this back, any thoughts? I'm planning on turning it in for a new one I suppose.